BOSTON (AP) — Matt Grzelcyk scored his first career goal, David Krejci had a goal and an assist and the Boston Bruins stretched their season-long winning streak to four straight in a 4-3 win over the Pittsburgh Penguins on Friday. David Pastrnak's goal on a breakaway 5:06 into the third broke a 3-all tie and Anton Khudobin shut out the Penguins the rest of the way to win his fourth straight start.Read more on NewsOK.com